For fans of off-roading, My Phoenix Bikes has the rundown on 18 popular trail rides, such as Pemberton Loop and the Desert Classic.

One cool feature, particularly for Arizona bikers, is the heat monitor. It tracks the local temperature and offers riders guidelines about how much water or sports drink is required to stay hydrated on rides in varying temps.

It also offers local resources for bike riders, including equipment tips, DIY bike-care instructions and a directory of local bicycle resources.

The app will eventually link with Grid Bikes, a bike-sharing program akin to New York's CitiBike that soon will launch in Phoenix, Mesa and Tempe.

My City Bikes has developed community-tailored apps for multiple cities, such as Pasadena, Calif., Indianapolis and Miami.